Light Fuel-Cell Hybrid Electric Vehicles Based on Predictive Controllers

Na, Woonki; Park, Tae‐Sik; Kim, Tae-Hyung; Kwak, Sangshin

doi:10.1109/tvt.2010.2087045

Cited by 53 publications

(17 citation statements)

References 19 publications

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“…16 is an equivalent series resistor (ESR) in the impedance network inductor 1 (L A ). 16. Block diagram of the current control loop under unbalanced loads.…”

Section: B Responses With Ac Motor Loadsmentioning

confidence: 99%

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A Flexible Voltage Bus Converter for the 48-/12-V Dual Supply System in Electrified Vehicles

Kim

Kwak

2017

IEEE Trans. Veh. Technol.

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Due to an increasing in-vehicle electric load demand, a new 48 V electric system architecture proposed by German premier car manufacturers has been gaining increasing attention recently for electrified vehicles. In this paper, a multiple voltage bus converter for the 48 V and existing 12 V dual supply system, providing additional flexible dc bus voltages, is proposed. The proposed converter can provide a dual flexible dc voltage bus and an additional dependent voltage bus while simultaneously managing the 12 V supply net using just one single leg switch pole and a diode. The additional dc voltage buses will provide more options to accommodate variable electric load components in a vehicle improving their power density. Due to the multiple control objectives, the single leg pole requires a multimode switching strategy to regulate the additional bus voltages. To improve the on-board vehicle system reliability and performance, an impedance network structure is implemented in the converter to obtain a dead time free PWM (pulse width modulation). Simulation and experimental results are presented to verify the feasibility and effectiveness of the proposed structure and control methods.Index Terms--48 V power supply, dual supply net, more electric vehicles. Since 2010, he has been with Chung-ang University, Seoul, Korea, currently as an Associate Professor. His research interests are topology design, modeling, control, and analysis of ac/dc, dc/ac, ac/ac power converters including resonant converters for adjustable speed drives and digital display drivers as well as modern control theory applied to DSP-based power electronics.

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“…16 is an equivalent series resistor (ESR) in the impedance network inductor 1 (L A ). 16. Block diagram of the current control loop under unbalanced loads.…”

Section: B Responses With Ac Motor Loadsmentioning

confidence: 99%

“…The 48/12 V dual-voltage architecture includes two batteries (48 V and 12 V batteries). Various different structures with multiple energy storage devices have been reported for electrified vehicles in the literature [1], [6], [8]- [16]. A typical structure for the dual supply net with a single 48V alternator is exemplified in Fig.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Voltage Bus Converter for the 48-/12-V Dual Supply System in Electrified Vehicles

Kim

Kwak

2017

IEEE Trans. Veh. Technol.

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“…In order to provide such evidence, a variety of authors has proposed energy management strategies (EMS) [3]- [7], [8], [14], [15], [23]- [27] and design criteria for power propulsion systems [9]- [13]. Most of these EMS can be categorized as i) optimization-based and/or ii) heuristic-rule based.…”

Section: Introductionmentioning

confidence: 99%

On the Design of Robust Energy Management Strategies for FCHEV

Morales-Morales

Cervantes

Cano-Castillo³

2015

IEEE Trans. Veh. Technol.

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In this paper we analyze the limitations that imposes the presence of uncertainty in the design of optimal energy management strategies for FC (fuel cell) Hybrid Electric Vehicles (FCHEV). Using an electric powertrain constituted by a hydrogen fuel cell and a battery bank, the fuel consumption minimization problem is analyzed in the presence of parametric uncertainty. The conditions that ensure that the nominal optimization problem matches the solution of the real (unknown) optimization problem are clearly stated. By observing that the uncertainty will limit the feasible solutions of the minimization consumption problem, a supervisory control constituted by heuristic rules is proposed to face such limitations, resulting a mixed optimal-heuristic Energy Management Strategy. The effect of the powertrain design, driving cycle and initial conditions in the proposed strategy is discussed. Numerical simulations provide evidence of the advantages and features of the supervisory control strategy.Index Terms-Fuel Economy, Energy management, optimal control.

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“…A classical boost converter is often used as an FC converter and a PV converter [9], and a classical two-quadrant (bidirectional) converter is often used as a supercapacitor or battery converter. However, the classical converters will be limited when the power increases or at higher step-up ratios.…”

Section: Introductionmentioning

confidence: 99%